#!/bin/sh
# ----------------------------------------------------------------------------
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# ----------------------------------------------------------------------------

# ----------------------------------------------------------------------------
# Interactive Scala Shell Start Up script
#
# Required ENV vars:
# ------------------
#   SCALA_HOME - location of a Scala home directory
# ----------------------------------------------------------------------------

cygwin=false;
case "`uname`" in
    CYGWIN*) cygwin=true ;;
esac

# Finding the root folder for this Scala distribution
SOURCE=$0;
SCRIPT=`basename "$SOURCE"`;
while [ -h "$SOURCE" ]; do
    SCRIPT=`basename "$SOURCE"`;
    LOOKUP=`ls -ld "$SOURCE"`;
    TARGET=`expr "$LOOKUP" : '.*-> \(.*\)$'`;
    if expr "${TARGET:-.}/" : '/.*/$' > /dev/null; then
        SOURCE=${TARGET:-.};
    else
        SOURCE=`dirname "$SOURCE"`/${TARGET:-.};
    fi;
done;
SCALA_HOME=`dirname "$SOURCE"`/..;
SCALA_HOME=`cd "$SCALA_HOME"; pwd`;
if $cygwin; then
    SCALA_HOME=`cygpath --windows --short-name "$SCALA_HOME"`
    SCALA_HOME=`cygpath --unix "$SCALA_HOME"`
fi

# Constructing the extension classpath
TOOL_CLASSPATH=""
if [ -z "$TOOL_CLASSPATH" ] ; then
    for ext in `ls -d "$SCALA_HOME"/lib/*` ; do
        if [ -z "$TOOL_CLASSPATH" ] ; then
            TOOL_CLASSPATH="$ext"
        else
            TOOL_CLASSPATH="$TOOL_CLASSPATH:$ext"
        fi
    done
fi

if $cygwin; then
    if [ "$OS" = "Windows_NT" ] && cygpath -m .>/dev/null 2>/dev/null ; then
        format=mixed
    else
        format=windows
    fi
    SCALA_HOME=`cygpath --$format "$SCALA_HOME"`
    TOOL_CLASSPATH=`cygpath --path --$format "$TOOL_CLASSPATH"`
fi

# Reminder: substitution ${JAVA_OPTS:=-Xmx256M -Xms16M} DO NOT work on Solaris
[ -n "$JAVA_OPTS" ] || JAVA_OPTS="-Xmx256M -Xms32M"

if [ -z "$JAVACMD" -a -n "$JAVA_HOME" -a -x "$JAVA_HOME/bin/java" ]; then
    JAVACMD="$JAVA_HOME/bin/java"
fi

exec ${JAVACMD:=java} $JAVA_OPTS -cp "$TOOL_CLASSPATH" -Dscala.home="$SCALA_HOME" -Denv.classpath="$CLASSPATH" -Denv.emacs="$EMACS" org.scalashell.scalash.Main "$@"
